What my response was saying is that you have 5-6 questions now all relating to hook use in less than 3 days (4 of which are on the same topic), which are for extending mediawiki (i.e., not built-in so not an issue with MediaWiki out of the box), so you might consider using one of the Professional development and consulting contacts to get help with customizing mediawiki via hooks. The MW help desk is not obligated in any way to help with customization although they will be kind enough to point you to places in the manual where you can learn to do it yourself. They are unlikely to give you working customization code, so you are likely better off using a name from the professional development and consulting link than to continue making repeated threads for the same/similar issues.
Also they don't appreciate multiple related threads, this makes their job harder. Typically they like you to keep related topics in a single thread.
These appear to be your separate help threads over the last 3 days:
Topic:Vr7vy8dfi6lopv8l This thread How to remove braces from {contactpage-url}? (hooks) - 19 mins ago
Topic:Vqzvrglya6s8mfud How to edit the footer menu when working with default skins? (hooks) - 7 hours ago
Topic:Vr7yzqbnp11bdxqx ContactPage footer link leads to a not found (404) webpage (hooks) - 15 hours ago
Topic:Vr28yxdj94qtlskf How to delete a default footer link in MediaWiki >=1.35.0? (hooks) - 20 hours ago
Topic:Vr398817s5j1oo97 How to change footer menu ⧼contactpage-label⧽ text AND link-address? (extension) - 21 hours ago
Topic:Vr34jvqzkodq6688 How to add a default footer link in MediaWiki >=1.35.0 (hooks) - 2 days ago
Simply adding a comment to one of your existing threads would have bumped it back up to the top. You don't need to go creating a new one for each way you reword the same topic. Search would still find them. Duplicate topics or topics continued in separate posts are annoying to helpers here and generally discouraged.
The extension used to create this page--Structured Discussion/Flow--creates a separate mediawiki page for every topic created. Please try to avoid duplicates, near duplicates or the continuation of a previous recent discussion in a new comment. Creating all of those extra pages is unnecessary.